Adriana in Playa Del Rey, California said her husband found this note from a non-wind chime enthusiast taped to their outside of their condo building. “I personally love all the exclamation points,” Adriana says — “especially the cheery ‘thanks!’ at the bottom.”

As it turns out, at least one study has shown that laughter in the workplace can actually improve productivity.

Of course, that didn’t help our submitter in St. Louis from totally freaking out when she found this anonymous note on her desk at her “conservative” office, where she says that although silence pretty much reigns, “I giggle and talk loudly all the time.”

Our submitter later found out that the note was a “prank” from a friendly coworker. (But — paranoia alert — was it completely in jest, or a p-a power play?)

“About five months ago,” writes Catherine in Massachusetts, a new tenant moved in and began a new exercise regime: running back and forth in the building hallways. “His/her gait is rather lumbering and resonates throughout our apartment,” Catherine says. “We were startled at first, but have come to giggle over this frequent disruption. Apparently, one of our neighbors isn’t laughing.”

From there, things began to escalate. “Fortunately,” Catherine says, the ensuing flame war “just goes to show that most of our neighbors have a great sense of humor.”

Writes our submitter in Colorado: “Last year, a frog moved in to our small backyard pond. Although the sound was soothing and peaceful at first, this year it sounds like he’s quadrupled in size, his croaking now loud and obnoxious. We’ve tried to find the frog in the rocks to move him, with no luck. The kicker? “Apparently, one of our genius neighbors thinks we’re intentionally causing the ruckus with some kind of backyard Frog Noise Machine.”